问题
单项选择题
不属于干扰素生物活性的是（）
A.抗病毒
B.抗肿瘤
C.免疫调节
D.移植排斥
E.以上都对
答案
参考答案：D
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不属于干扰素生物活性的是（）
A.抗病毒
B.抗肿瘤
C.免疫调节
D.移植排斥
E.以上都对
参考答案：D
Shyness（害羞） means feeling frightened when you’re around other people. Some children are shy. Some become very shy later because of their life experience. , everybody gets a little shy sometimes. It’s just how much they feel shy. Most people have red faces and talk in sentences（句子） when they are shy. But some become shy that they won’t go to a restaurant because they are too nervous to and pay for their food. Some are afraid of meeting people, so they seldom go outside. This kind of shyness can be for a person. If shyness doesn’t stop you from doing something you want to do, being shy isn’t a big . Some experts（专家） say shy people are good at working because they think more and less. But remember not to let good opportunities（机会） pass you by just because of it. If you have to sing a song at a birthday party or give some performances in front of others, just do it. There’s nothing to .
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